Arlington, DC

9:33 PM EDT on August 27, 2016 (GMT -0400)
Ronald Reagan Washington National

Weather History for KDCA - January, 2011

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Thursday, January 6, 2011

  Actual Average Record
Temperature  
Mean Temperature 35 °F 36 °F  
Max Temperature 41 °F 43 °F 73 °F (2007)
Min Temperature 28 °F 29 °F 2 °F (1884)
Degree Days  
Heating Degree Days 30 29  
Month to date heating degree days 156 174  
Since 1 July heating degree days 1661 1655  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 18 °F    
Average Humidity 52    
Maximum Humidity 69    
Minimum Humidity 34    
Precipitation  
Precipitation T in 0.09 in 1.35 in (1905)
Month to date precipitation 0.07 0.52  
Year to date precipitation 0.07 0.52  
Snow  
Snow T in 0.10 in 9.00 in (1892)
Month to date snowfall T 0.7  
Since 1 July snowfall 2.1 3.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.70 in    
Wind  
Wind Speed 5 mph (SSE)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Jan. 06, 2011 Rise Set
Actual Time 7:26 AM EST 5:01 PM EST
Civil Twilight 6:57 AM EST 5:30 PM EST
Nautical Twilight 6:24 AM EST 6:03 PM EST
Astronomical Twilight 5:51 AM EST 6:36 PM EST
Moon 8:43 AM EST (1/6) 7:34 PM EST (1/6)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Waxing Crescent, 5% of the Moon is Illuminated
Jan 6
Waxing Crescent
Jan 12
First Quarter
Jan 19
Full
Jan 26
Last Quarter
Feb 2
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 30.0 °F - 19.0 °F 64% 29.83 in 10.0 mi Calm Calm - N/A   Clear
1:52 AM 28.9 °F 25.2 °F 19.0 °F 67% 29.82 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
2:52 AM 30.0 °F - 19.0 °F 64% 29.82 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:52 AM 28.9 °F 23.9 °F 19.9 °F 69% 29.80 in 10.0 mi NNE 4.6 mph - N/A   Mostly Cloudy
4:10 AM 30.2 °F 26.7 °F 19.4 °F 64% 29.79 in 10.0 mi NNE 3.5 mph - N/A   Overcast
4:52 AM 28.0 °F 24.2 °F 19.0 °F 69% 29.78 in 10.0 mi North 3.5 mph - N/A   Overcast
5:52 AM 28.0 °F 22.8 °F 18.0 °F 66% 29.78 in 10.0 mi NE 4.6 mph - N/A   Overcast
6:52 AM 30.0 °F - 18.0 °F 61% 29.78 in 10.0 mi Calm Calm - N/A   Overcast
7:52 AM 30.0 °F - 17.1 °F 59% 29.78 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:52 AM 32.0 °F - 16.0 °F 52% 29.78 in 10.0 mi Calm Calm - N/A   Overcast
9:52 AM 34.0 °F - 15.1 °F 46% 29.78 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:52 AM 35.1 °F 32.2 °F 15.1 °F 44% 29.76 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
11:52 AM 39.0 °F 36.8 °F 14.0 °F 36% 29.72 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
12:52 PM 39.0 °F 35.7 °F 14.0 °F 36% 29.68 in 10.0 mi WNW 4.6 mph - N/A   Scattered Clouds
1:52 PM 41.0 °F 36.4 °F 15.1 °F 35% 29.66 in 10.0 mi West 6.9 mph - N/A   Clear
2:52 PM 41.0 °F 36.4 °F 15.1 °F 35% 29.65 in 10.0 mi Variable 6.9 mph - N/A   Partly Cloudy
3:52 PM 39.0 °F 34.0 °F 15.1 °F 38% 29.65 in 10.0 mi South 6.9 mph - N/A   Partly Cloudy
4:52 PM 36.0 °F 30.3 °F 19.9 °F 52% 29.63 in 10.0 mi South 6.9 mph - N/A   Partly Cloudy
5:52 PM 35.1 °F 30.1 °F 19.0 °F 52% 29.62 in 10.0 mi South 5.8 mph - N/A   Partly Cloudy
6:52 PM 35.1 °F 32.2 °F 21.0 °F 57% 29.62 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
7:52 PM 34.0 °F 28.0 °F 18.0 °F 52% 29.60 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
8:52 PM 35.1 °F 27.9 °F 21.0 °F 57% 29.59 in 10.0 mi South 9.2 mph - N/A   Overcast
9:52 PM 35.1 °F 26.9 °F 19.9 °F 54% 29.58 in 10.0 mi South 11.5 mph - N/A   Overcast
10:52 PM 34.0 °F 27.2 °F 21.0 °F 59% 29.56 in 10.0 mi SSW 8.1 mph - N/A   Overcast
11:52 PM 34.0 °F 26.6 °F 21.9 °F 61% 29.54 in 10.0 mi South 9.2 mph - 0.00 in Snow Light Snow